Assessing the presence of microplastic particles in Tunisian agriculture soils and their potential toxicity effects using Eisenia andrei as bioindicator

2021 ◽  
pp. 148959
Author(s):  
Iteb Boughattas ◽  
Sabrine Hattab ◽  
Nesrine Zitouni ◽  
Marouane Mkhinini ◽  
Omayma Missawi ◽  
...  
Keyword(s):  
Eisenia Andrei ◽  
Potential Toxicity ◽  
Toxicity Effects

Potential toxicity effects of Anastatica hierochuntica aqueous extract on prenatal development of Sprague-Dawley rats

2019 ◽  
Vol 245 ◽  
pp. 112180
Author(s):  
Siti Rosmani Md Zin ◽  
Normadiah M. Kassim ◽  
Zahurin Mohamed ◽  
Abdulmannan H. Fateh ◽  
Mohammed A. Alshawsh
Keyword(s):  
Aqueous Extract ◽  
Prenatal Development ◽  
Sprague Dawley ◽  
Potential Toxicity ◽  
Sprague Dawley Rats ◽  
Toxicity Effects

Impact of TiO2 nanoparticles on Vicia narbonensis L.: potential toxicity effects

PROTOPLASMA ◽  
2014 ◽  
Vol 251 (6) ◽  
pp. 1471-1479 ◽  
Author(s):  
M. Ruffini Castiglione ◽  
L. Giorgetti ◽  
R. Cremonini ◽  
S. Bottega ◽  
C. Spanò
Keyword(s):  
Tio2 Nanoparticles ◽  
Potential Toxicity ◽  
Vicia Narbonensis ◽  
Toxicity Effects

scholarly journals Lead acetate ecotoxicity in tropical soils

2021 ◽  
Author(s):  
Rômulo CS Alexandrino ◽  
Francielle Lima ◽  
Gabriel C Martins ◽  
Tiago Natal-da-Luz ◽  
José Paulo Sousa ◽  
...  
Keyword(s):  
Plant Species ◽  
Lead Acetate ◽  
Tropical Soils ◽  
Positive Control ◽  
Raw Material ◽  
Folsomia Candida ◽  
Eisenia Andrei ◽  
Potential Toxicity ◽  
Response Curves ◽  
Invertebrate Species

Abstract Lead acetate (AcPb) is an important raw material used in chemical industries worldwide. The potential toxicity of AcPb is generally attributed to the presence of Pb. However, the effect of AcPb on the environment as a whole is still poorly known. This study aimed to evaluate AcPb toxicity on three standard species of soil invertebrates and two plant species using ecotoxicology tests. Three tropical soils (Oxisol, Inceptisol, and Tropical Artificial Soil (TAS)) were contaminated with different concentrations of AcPb and one dose of K-acetate (positive control). These soils were used in tests with Eisenia andrei (earthworm), Folsomia candida (springtail), Enchytraeus crypticus (enchytraeid), Zea mays (maize), and Phaseolus vulgaris (common bean). Dose-response curves obtained in the laboratory tests were used to estimate the EC50 values for each species. Among invertebrates, the highest sensitivity to AcPb was observed for E. crypticus in the TAS (EC50 = 29.8 mg AcPb kg− 1), whereas for E. andrei and F. candida the highest sensitivity was observed in the Oxisol (EC50 = 141.9 and 1835 mg AcPb kg− 1, respectively). Folsomia candida was the least sensitive invertebrate species to AcPb in all soils. Among plant species, Z. mays was less sensitive (EC50 = 1527.5 mg AcPb kg− 1) than P. vulgaris (EC50 = 560.5 mg AcPb kg− 1) in the Oxisol. The present study evidenced that the toxicity of AcPb should not be attributed uniquely to the presence of Pb, as the treatment containing uniquely Ac provoked the same toxicity as the highest dose of AcPb.

Assessing the antibacterial activities and toxicity effects of hydroethanolic extract of Calliandra portoricensis

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
SO Ogbonnia ◽  
VN Enwuru ◽  
GO Mbaka ◽  
FE Nkemehule ◽  
JE Emordi ◽  
...  
Keyword(s):  
Antibacterial Activities ◽  
Hydroethanolic Extract ◽  
Toxicity Effects

Management of toxicity effects in a large wastewater treatment plant

1997 ◽  
Vol 36 (2-3) ◽  
pp. 1-8 ◽  
Author(s):  
P. Grau ◽  
B. P. Da-Rin
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Severe Case ◽  
Treatment Efficiency ◽  
Filamentous Bulking ◽  
Biological Phenomena ◽  
Inhibition Of Nitrification ◽  
Toxicity Effects

An unusually severe case of toxicity accompanied by activated sludge filamentous bulking was observed at the wastewater treatment plant Sao Paulo-Barueri. Treatment efficiency of the plant, operated without major problems for more than five years before, was significantly hindered for almost six months. Occurrence of toxic shocks was confirmed partly directly but mostly indirectly by inhibition of nitrification and biological phenomena related to toxicity. Several measures adopted, including the recycled activated sludge chlorination, are described in the paper.

Current Understanding of Interactions between Nanoparticles and ABC Transporters in Cancer Cells

2019 ◽  
Vol 25 (42) ◽  
pp. 5930-5944 ◽  
Author(s):  
Jian Yin ◽  
Xudong Deng ◽  
Jie Zhang ◽  
Jun Lin
Keyword(s):  
Abc Transporters ◽  
Recent Literature ◽  
Current Knowledge ◽  
Major Elements ◽  
Inhibitory Effects ◽  
Potential Toxicity ◽  
Central Nervous System Disorders ◽  
Extensive Search ◽  
Potential Interactions ◽  
Effective Cancer Therapy

Background: ATP-binding cassette (ABC) transporters-mediated multidrug resistance (MDR) remains the major obstacle for effective cancer therapy. Nanoparticles (NPs)-based delivery systems are promising to overcome MDR, but only a few of them have been accepted for clinical treatment, which should be due to their insufficient transportation and potential toxicity. In this respect, more and more attentions are being attracted on the interactions between NPs and ABC transporters, which hold a key role in the treatment of MDR cancer and the toxicity of NPs. However, there are no systematic reviews about such interactions, especially about their corresponding mechanism. Methods: We undertook extensive search of PubMed databases for peer-reviewed literatures using focused review questions. The retrieved papers were mostly published within the 5 years (84 of 104) and all with an impact factor above 2. First, this review focused on the current knowledge of ABC transporters involved in MDR and their inhibitors. Then, we reviewed the most recent literature about the inhibitory effects of organic NPs’ excipients on ABC transporters and the direct interactions of inorganic NPs with ABC transporters. The major elements of obtained papers were described and classified depending on the structure of NPs. Results: Both organic and inorganic NPs can inhibit the function of ABC transporters, but based on different mechanisms. The effects of organic NPs are caused by several excipients like surfactants, polymers, lipids and cyclodextrin. Meanwhile, inorganic NPs usually act as the substrates of ABC transporters and competitively inhibit the efflux of drugs. These phenomena are interesting and worth investigating. Conclusion: The finding of this review confirmed the potential interactions between NPs and ABC transporters. These phenomena are interesting and worth investigating, and a knowledge of related mechanism would not only be important for the clinical therapies toward overcoming cancer MDR, but also help the treatment of other diseases like tuberculosis, AIDS, and central nervous system disorders, whose drugresistance was also related to ABC transporter-mediated efflux.

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